Windows 7 64-bit BSOD

[FriendlyFiend]

I've recently (last 2-3 weeks) started to get random BSODs,which seem to be increasing in frequency (I've had 3 today). Up until this started happening the system has been very stable. I've not installed any new hardware or unusual software. Any help appreciated. (Minidump attached)

 

[Tews]

Your .dmp file shows a Memory Management error.. Download memtest86 and let it run for at least 5 passes...post any errors...


View attachment 57950

 

[Jonathan_King]

Welcome!

Looks like your memory is at fault. Try downloading a copy of Memtest86 and burning the ISO to a CD using ImgBurn. Boot from the CD, and run at least 5 passes.

You may also need to run a system file check. Open an elevated command prompt and enter sfc /scannow.

Microsoft (R) Windows Debugger Version 6.11.0001.404 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\Jonathan\Desktop\030210-11575-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 7 Kernel Version 7600 MP (8 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255
Machine Name:
Kernel base = 0xfffff800`02e1c000 PsLoadedModuleList = 0xfffff800`03059e50
Debug session time: Tue Mar  2 08:22:47.560 2010 (GMT-5)
System Uptime: 0 days 0:36:01.575
Loading Kernel Symbols
...............................................................
................................................................
...................
Loading User Symbols
Loading unloaded module list
.....
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1A, {31, fffffa8003bb6740, fffff8800b718000, fffff8a00b7a6f78}

Probably caused by : ntkrnlmp.exe ( nt! ?? ::NNGAKEGL::`string'+6378 )

Followup: MachineOwner
---------

6: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

MEMORY_MANAGEMENT (1a)
    # Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000000031, The subtype of the bugcheck.
Arg2: fffffa8003bb6740
Arg3: fffff8800b718000
Arg4: fffff8a00b7a6f78

Debugging Details:
------------------


BUGCHECK_STR:  0x1a_31

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

PROCESS_NAME:  svchost.exe

CURRENT_IRQL:  0

LAST_CONTROL_TRANSFER:  from fffff800031bb83d to fffff80002e8df00

STACK_TEXT:  
fffff880`03e27498 fffff800`031bb83d : 00000000`0000001a 00000000`00000031 fffffa80`03bb6740 fffff880`0b718000 : nt!KeBugCheckEx
fffff880`03e274a0 fffff800`03172c15 : fffff880`0b718000 00000000`3f0b0000 00000000`00121000 fffffa80`021c99f0 : nt! ?? ::NNGAKEGL::`string'+0x6378
fffff880`03e274f0 fffff800`0316017c : fffffa80`00000000 fffffa80`044ceb60 00000000`00000000 00000000`00000000 : nt!MiPerformFixups+0x65
fffff880`03e27540 fffff800`02e7f4ac : fffffa80`021c99f0 fffffa80`03e35e80 00000000`00000000 fffff800`02e7fa00 : nt!MiRelocateImagePfn+0x114
fffff880`03e275a0 fffff800`02e33db4 : fffffa80`0399de90 00000000`00000000 00000000`00000000 00000000`00000000 : nt!MiWaitForInPageComplete+0x89c
fffff880`03e27680 fffff800`030edb1a : 00000000`00000000 fffffa80`06c5fef0 00000000`00000001 fffffa80`06c5fef0 : nt!MiPfCompletePrefetchIos+0x54
fffff880`03e276b0 fffff800`032eabfd : 00000000`000000a8 00000000`00000075 fffffa80`06c5fef0 fffff880`03e27778 : nt!MmPrefetchPages+0x13a
fffff880`03e27710 fffff800`032f2c1e : fffff8a0`00000000 fffff8a0`00000050 fffff8a0`00000019 00000000`00000001 : nt!PfpPrefetchFilesTrickle+0x21d
fffff880`03e27810 fffff800`032f37b7 : 00000000`00000000 fffff880`03e27ca0 fffff880`03e27a08 fffff8a0`025215c0 : nt!PfpPrefetchRequestPerform+0x30e
fffff880`03e27960 fffff800`032ffd8e : fffff880`03e27a08 00000000`00000001 fffffa80`06e1e860 00000000`00000000 : nt!PfpPrefetchRequest+0x176
fffff880`03e279d0 fffff800`033044be : 00000000`00000000 00000000`012ff990 00000000`0000004f fffffa80`05cc4b01 : nt!PfSetSuperfetchInformation+0x1ad
fffff880`03e27ab0 fffff800`02e8d153 : fffffa80`044ceb60 00000000`00000000 00000000`00000001 00000000`00000001 : nt!NtSetSystemInformation+0xb91
fffff880`03e27c20 00000000`776e15aa : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
00000000`012ff968 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x776e15aa


STACK_COMMAND:  kb

FOLLOWUP_IP: 
nt! ?? ::NNGAKEGL::`string'+6378
fffff800`031bb83d cc              int     3

SYMBOL_STACK_INDEX:  1

SYMBOL_NAME:  nt! ?? ::NNGAKEGL::`string'+6378

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nt

IMAGE_NAME:  ntkrnlmp.exe

DEBUG_FLR_IMAGE_TIMESTAMP:  4a5bc600

FAILURE_BUCKET_ID:  X64_0x1a_31_nt!_??_::NNGAKEGL::_string_+6378

BUCKET_ID:  X64_0x1a_31_nt!_??_::NNGAKEGL::_string_+6378

Followup: MachineOwner
---------

Good luck!

~JK

 

[FriendlyFiend]

Cheers guys. Many thanks for the help. I gave Memtest86 (version 3.4) 8 passes with no reported faults. Scannow found no 'integrity vioilations' either. I must admit, I'm at a bit of a loss.

I don't know if it's relevant but I've also noticed that the computer seems to hang for a few seconds - not recognising keyboard/mouse input at the login screen after startup/restarts.

Thanks again for your help.

 

[Jonathan_King]

Try updating your BIOS. Exactly what machine do you have? Look on the manufacturer's website for a BIOS download.